General Description
QSFP28 passive copper cable assembly feature eight differential copper pairs, providing four data transmission channels at speeds up to 28Gbps per channel, and meets 100G Ethernet 25G Ethernet and InfiniBand Enhanced Data Rate(EDR) requirements.Available in a broad rang of wire gages-from 26AWG through 30AWG-this 100G copper cable assembly features low insertion loss and low cross talk. Designed for applications in the data center, networking and telecommunications markets that require a high speed, reliable cable assembly, this next generation product shares the same mating interface with QSFP+ form factor ,making it backward compatible with existing QSFP ports.QSFP28 can be used with current 10G and 14G applications with substantial signal integrity margin.
Features and Benefits
Compatible with IEEE 802.3bj, IEEE 802.3by and Infiniband EDR
Supports aggregate data rates of 100Gbps
Optimized construction to minimize insertion loss and cross talk
Backward compatible with existing QSFP+ connectors and cages
Pull-to-release slide latch design
26AWG through 30AWG cable
Straight and break out assembly configurations available
Customized cable braid termination limits EMI radiation
Customizable EEPROM mapping for cable signature
RoHS compliant
Product Applications
Switches, servers and routers
Data Center networks
Storage area networks
High performance computing
Telecommunication and wireless infrastructure
Medical diagnostics and networking
Test and measurement equipment
Industry Standards
100G Ethernet(IEEE 802.3bj)
25G Ethernet(IEEE 802.3by)
InfiniBand EDR
SFF-8665 QSFP+ 28G 4X Pluggable Transceiver Solution(QSFP28)
SFF-8402 SFP+ 1X 28Gb/s Pluggable Transceiver Solution(SFP28)
Technical Documents
108-32081 QSFP28 Copper Module Direct Attach Cable Assembly
108-2364 Single Port and Ganged SFP+ Cages, ZSFP+ Single Port and Ganged Cages, and SFP+ Copper Direct Attach Cable Assemblies.
High Speed Characteristics
Mechanical Specifications
Parameter | Symbol | Min | Typical | Max | Unit | Note |
Differential Impedance | RIN,P-P | 90 | 100 | 110 | Ώ | |
Insertion loss | SDD21 | 8 | 22.48 | dB | At 12.8906 GHz | |
Differential Return Loss | SDD11 | 12.45 | See 1 | dB | At 0.05 to 4.1 GHz | |
SDD22 | 3.12 | See 2 | dB | At 4.1 to 19 GHz | ||
Common-mode to | SCC11 | dB | ||||
Common-mode | 2 | At 0.2 to 19 GHz | ||||
SCC22 | ||||||
Output return loss | ||||||
Differential to common-mode | SCD11 | 12 | See 3 | dB | At 0.01 to 12.89 GHz | |
Return loss | SCD22 | 10.58 | See 4 | At 12.89 to 19 GHz | ||
Length (m) | Cable AWG |
1 | 30 |
2 | 30 |
3 | 30/26 |
4 | 26 |
5 | 26 |
Soptic Communication Co., Ltd is a professional manufacturer of Optical transceivers . Developing and manufacturing fiber optic communication products. Our Major products are SFP, 10G SFP+、25G SFP28、40G QSFP+、100G QSFP28、12G MINI SAS HD and AOC:10G SFP+ AOC、40 SFP+ AOC、100G QSFP28 AOC, BIDI SFP, 10G XFP,10G XENPAK, 10G X2, DWDM/CWDM SFP, Copper SFP , Fiber Optic Patch cord , PLC splitter and so on .